Goal doesn't matter too much on GoFundMe since you get the money whether the goal is met or not -- more a way of communicating what is needed for something specific (like bail money or repairing a building or w/e).

Biggest issue with a crowdfunding campaign is that people need to trust you, which is hard to do unless you're a known entity like the DSA (which is running a crowdfunding campaign right now). There's legitimate worry about scams via crowdfunding activism right now.